vectorization request with loop

I would like to vectorize the following code with loop

n = 5;
y = (11:20);
   for j = 1 : n + 1
      for i = 1 : n + 1
          if j>= i
              func(i,j) = y(i) ./ sum(y(1:j));
          end
      end
  end
Trial>> 
Trial>> func

func =

    1.0000    0.4783    0.3056    0.2200    0.1692    0.1358
         0    0.5217    0.3333    0.2400    0.1846    0.1481
         0         0    0.3611    0.2600    0.2000    0.1605
         0         0         0    0.2800    0.2154    0.1728
         0         0         0         0    0.2308    0.1852
         0         0         0         0         0    0.1975

could someone help me out?

Answer 1

[José-Luis]

n = 5;
y = (11:20)';
y_p = cumsum(y)';

result = triu(bsxfun(@rdivide,y(1:n+1),y_p(1:n+1)))

Answer 2

[yoshiyuki]

Thank you so much for very quick answer. sorry to bother you but if I have to add func2, func3 like below n = 5; y = (11:20); for j = 1 : n + 1 for i = 1 : n + 1 if j>= i func(i,j) = y(i) ./ sum(y(1:j)); func2(i,j) = z(j) .* func1(i,j); end end end